Question

technician a says that testing the secondary air injection system starts with checking for any related dtcs. technician b says that all new vehicles have a secondary air injection system. who is correct? a. technician a b. technician b c. both technician a and technician b d. neither technician a nor technician b

Explanation:

• Technician A: Checking for Diagnostic Trouble Codes (DTCs) is a standard first - step in system testing. If there are DTCs related to the secondary air injection system, it gives clues about potential issues.
• Technician B: Not all new vehicles have a secondary air injection system. This system is mainly for emissions control in some vehicles, but there are other emissions control strategies that may be used in new vehicles without this particular system.

Answer:

a. Technician A